
Flat Roof Leak Detection in Custom House
Professional Residential & Commercial Roof Inspectors
Do not let a roof leak ruin your property
Schedule an inspection today to ensure that your roof is safe and sound
- Non Destructive Solution
- Accurately pinpoint your leak
- 99% Success Rate
- Prevents further damage to your property
Request A Call Back
Premier Leak Detection and Roof Membrane Integrity Testing
We are committed to helping UK facilities managers and commercial property owners maintain leak-free, compliant roofs. Our focus on Green Roof Membrane Integrity Testing and Commercial Flat Roof Leak Detection ensures your roof's durability and adherence to industry standards.
Our Specialised Roofing Services
Green Roof Membrane Integrity Testing
Green roofs demand specialised attention when being installed to prevent leaks in the future and to maintain their benefits. Our Green Roof Membrane Integrity Testing service ensures:
- Independent Membrane Integrity Testing: Your roof will be thoroughly surveyed, with a detailed inspection of all roof penetrations. This assessment will include evaluating roof terminations, rooftop equipment mounts, the roof membrane condition, perimeter flashing, parapet wall coping, and any other elements that could affect the membrane's watertightness.
- Regulatory Compliance: Meeting the requirements of British Standards 6229:2018, NHBC Chapter 7.1. and Premier Guarantee Structural Warranties requirements
Commercial Flat Roof Leak Detection
Flat roofs are vulnerable to leaks that can lead to significant damage. Our Commercial Flat Roof Leak Detection service offers:
- Precision Detection: Employing infrared thermography and electronic methods for accurate leak identification.
- Minimal Business Interruption: Non-invasive techniques to ensure your operations remain uninterrupted.
- Cost-Effective Maintenance: Regular checks to identify and address leaks before they cause extensive damage.
Why Work With Us?
- Independent Expertise: As a third-party service provider, we deliver unbiased assessments, essential for Premier Guarantee Structural Warranties.
- Highly Skilled Team: Our experts are proficient in the latest roof membrane integrity testing and roof leak detection technologies and methods.
- Standards Compliance:
We ensure that your roofing complies with British Standards 6229:2018, NHBC Chapter 7.1. and Premier Guarantee Structural Warranties requirements
The Importance Of Identifying Flat Roof Leaks Quickly
Your flat roof is vital as it protects the structure and the content of your building from the weather. However, flat roofs have a higher risk of leaking than sloped roofing, and if not dealt with promptly, even a minor leak can become a major problem very quickly. A leak in your flat roof can lead to multiple water entry points, which can cause serious damage to your property and the contents. Our leak detection experts will inspect the roof and find the source of any leaks quickly, helping you to avoid expensive repairs or replacements.
Flat roofs can leak due to many factors including, poor installation, inadequate maintenance, or exposure to severe weather. Flat roof leaks could be caused due to cracked flashing, blocked gutters or punctures caused by falling objects.
It’s important to remember not all roof leaks can be easily detected without the help of experts with the right tools and experience. Regular professional roof inspections are a good way to ensure that your roof is in good shape and help to detect any potential issues before they have become a major issue.
Our team provides both commercial and residential roof cleaning services throughout Custom House as well as the entire Greater London (Newham) region, including Beckton, Newham, Plaistow, East Ham, Wallend.
Do you have a building with a flat roof area that leaks?

Specialists In Electronic Flat Roof Leak Detection
We are an independent UK flat roof leak detection company, who specialise in third-party electronic leak detection and integrity testing of all types of flat roofs and structural waterproofing membranes.
Our highly trained roof technicians are able to test all types of flat roofing, both residential and commercial in Custom House and throughout the Greater London (Newham) area. They can quickly locate the entry point by using non-destructive flat roof electronic leak detection techniques including low voltage earth leakage testing, differential pressure vacuum testing, high voltage dielectric electronic integrity testing, drone surveys & thermal imaging. It doesn’t matter what the weather is like for a leak detection survey. After the flat roof inspection is completed, you will receive an O&M Manual that includes a comprehensive Health and Safety Plan, Risk Assessments and Method Statements.

Integrity Testing For New Flat, Green And Blue Roofs
New flat, green and blue roofs must adhere to NHBC Chapter 7.1 Flat Roofs, Terraces and Balconies, as well British Standard 6229: 2018, (Flat Roofs with Continuously Supported Flexible Weatherproof Coverings, Code Of Practice).
Before any roofing membrane is overlaid, it must be visually examined and electronically tested to ensure waterproofing integrity. The membrane should be repaired and retested before any further layers are added, according to NHBC Chapter 7.1.9 (Green Roofs & Propriety Roofs).
Premier Guarantee Structural Warranties go one step further. According to section 7.11.25.2 of the “Roof Coverings – Green Roofing” section 7.11, the waterproof membrane must be tested for integrity before any other components are added to it. Testing should be performed only by an outside party that is not involved in the roofing contract.
A roof survey will be done and all roof penetrations will be inspected. This will include an assessment and examination of any roof penetrations, terminations, mounts for equipment, roof membrane conditions, parapet wall coping and perimeter flashing.
{While vacuum testing membrane seams off-site can be a great way to assess quality, it is not recommended for proving flat roof integrity.|Vacuum testing of seams of membranes done off-site is an excellent way to determine quality but it is not recommended to be used to verify the integrity of flat roofs.|Although it can be useful to test the quality of seams off-site, it is not recommended as a method to prove flat roof integrity.|While it’s a good way of evaluating quality, vacuum testing membrane seams is not recommended to prove flat roofs’ integrity.
Every job is unique and we have the knowledge and experience to deal effectively with all types of roofs and customer needs. All our roof surveys follow the requirements of all major UK warranty providers as well as British Standards, The Property Care Association, and CIRIA.
If you have further questions about our residential or commercial Custom House roof leak detection services get in touch today to get a free quotation.

It Is Vital To Detect A Leak Quickly For Property Protection.
- Preventing Structural Damage - Water leaks can damage your building’s structural integrity if they aren’t addressed promptly. This could cause costly repairs, or worse, your building may collapse. Early detection of a leak can help you preserve your building’s structural integrity and prevent further damage.
- Mould And Mildew Growth Avoidance- Roof leaks can lead to the growth of mildew and mould, which can have a negative impact on the health and well-being of the building’s occupants. By detecting roof leaks early, you can help keep your building safe by stopping the spread of mildew and mould.
- You Can Reduce Repair Costs - The longer a roof leak goes unnoticed, the more damage it causes. This will lead to more complicated and costly repairs than if the leak was found earlier. By identifying leaks quickly, you can reduce damage and save money.
- Energy Cost Savings - A roof leak could also lead to higher energy bills, as the leak’s location can cause draughts, which can make it harder for your building to stay at a moderate temperature. You can cut down on your energy costs by finding roof leaks and fixing them quickly .
- Reduce Your Insurance Costs - If your building has a history of water damage then you may get charged higher premiums by your insurance company. Avoiding water damage by finding leaks quickly can help you keep your insurance premiums low.
Reducing insurance costs: If your building has a history of water damage then you may get charged higher premiums by your insurance company. Avoiding water damage by finding leaks quickly can help you keep your insurance premiums low.
Flat Roof Leaks: The Signs To Look For
- A flat roof leak can be easily detected by water stains on the ceiling. These stains may appear as discoloured patches or water droplets and can indicate a leaking roof. To find the source of the problem, a professional roof inspector is required, as water spots on the ceiling could also be caused other problems such as plumbing leaks.
- Another sign that you have a flat roof leak, is peeling wallpaper or paint. Leakage can be signalled by peeling wallpaper or paint which is caused when water seeps from the ceiling into the attic. High humidity and condensation could also be the cause of this, to ensure that there are no leaks, it is essential to have a professional roof inspector examine your roof for any leaks.
- Mouldy or musty odours could also indicate that you have a leaking roof. The growth of mould and mildew can occur when water enters the structure, leaving you with a musty odour. This could be a health hazard and should be corrected immediately.
- Condensation inside the roof is another sign of a flat roof leak. Condensation on the roof surface can occur when the temperature inside is higher than outside. This signals a leak. This could also be due to inadequate insulation or poor ventilation.
Keep in mind, however, that these symptoms may also be caused by other issues, therefore, a professional roof inspection will be required to determine the actual source of the problem.
If you have further questions about our residential or commercial Custom House roof leak detection services get in touch today to get a free quotation.
Roof Leak Detection Frequently Asked Questions
Does insurance cover flat roofs?
Insurers in most cases will define flat roofs as being pitched at 10 degrees or less. Having a small part of your roof being flat usually is not a problem, but if over 25% of your roof is flat, you may find that most insurers may not be able to offer you any cover at all.
How long does flat roof sealant last?
Summary: roof coating systems last 10-20 years, but once they reach the end of their warranty, they can be recoated and a new warranty begins. The process can be repeated, making roof coating systems a renewable and sustainable roofing system.
Should a flat roof hold any water?
Whilst brief and occasional ponding is acceptable on a flat roof, regular or long-lasting ponding could be an indication that there is an issue with the roof that needs to be addressed.
Should I avoid buying a house with a flat roof?
Flat roofs are considered versatile and simple to maintain, but they can also be costly to repair. They are an energy-efficient alternative to sloped roofs but often come with issues such as a higher risk of leaking and water pooling. Flat roofs often have a shorter lifespan compared to sloped roofs
What is the major disadvantage of using a flat roof?
The biggest drawback of flat roofs is the drainage or lack thereof. Sure, flat roofs do have a slight slope that drains the water, but not nearly as efficiently as a pitched roof. The rainwater tends to remain on the roof and form a puddle, which can lead to possible leaks or material damage